Steam-boiler.



STEAM' BoILBR. APPLIOATIor Hmm Bmw. 190g.

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f ea; f3 fili v ATTORNEY x PATENTEVD AUG. 1,' 1905.

C. A. STURM.

STEAM BOILER.

APPLICATION FILED DBo.15,`19o4.

2 SHEETS-SHEET Z.

nected with each other by pipes UNITED STATES PA'IIENT OFFICE.

CHARLES ANDREW STUR-M, OF OASTLEROCK, WASHINGTON.

. STEAM-BOILER.

Specification of lLetters Patent.

Patented Aug. 1, 1905.

Application ledrDecemherhl, 1904.- Serial No. 236,957.

To all rbh/0m it may concern.-

Beit known that I, CHARLES ANDREw STURM,

- ically.

The invention consists of novel features and parts and combinations of the same, as will, be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings,

forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all the views.

Figure lisa planview of the improvement arranged as a stationary boiler. Fig., 2 isa sectional plan view'of the same on the line 2 2 of Fig. 3. Fig. 3 is a longitudinal sectional elevation of the same. Fig. 4: is a transverse section of thesame on the line 4. 4 of Fig. 3. Fig. 5 is a sectional plan Viewv of one of the cast-iron compartments;I and Fig.

6 is a sectional side elevation of the same, the section being on the line 6 6 of Fig.V 5.

The stationary steam-boilerV shown in the drawings is built into a suitable brickwork A, supporting a bottom chamber or compartment B, having at its free end a cut-out portion Bl for the reception of the grate Ofor the burning fuel in the {ire-box. tom chamber B is connected by pipes D with an intermediate chamber or compartmentV E, which in turn is connected by pipesD' with a top chamber F, carrying a steam-dome Gr of any approved construction.` The intermediate chamber E extends from the front H of the boiler to within a distance of the rear end or the back of the brickwork, as plainly illustrated in Fig. 3, and the rear portions of the bottom and topl chambers Band F are con- 2, extending through the space between the rear end of the intermediate-chamber E and the back of the brickwork A. A horizontally-disposed partition I, preferably. lined with asbestos or a similar material, extends `in .thfbrickwork between the chambersFfand F, :saidpartition The bot-4 reaching from the back of the brickwork to ,withina distance of the front H of the boiler to direct the smoke and gases forwardly to ar ,chimney J leading from the front of the fur- .nace, immediately below the top compartment;

F.` Now bythe arrangement described the smoke and gases arisingV from the burning= fuel in the re-box pass iirst rearwardly between the bottom chamber B and the intermediate chamber E, so as 'to heat the water contained in the said vch mbers, and then the smoke and gases rise at the rear end of the furnace until they strike the under side of the partitiony I to cause the smoke and gases to now travel forward between the said partition and the top of the. chamber E. The smoke l and gases finally rise in the front portion of the furnace -to the under side of the steamchamber F and then pass to the chimney J.

' The partition i prevents Yan overheating of the steam-compartment F:

By arranging the sets of pipes D, D', and

in the manner described it is evident that the water readily circulates throughl the several chambers or compartments, and as the smoke and gases come in contact with the several pipes and also with the chambers it is evident that .the water is highly heated and quickly generated into steam, and the burning fuel isfutilized to the fullest advantage.

The front H of the boiler is provided with the usual fuel-supply door H' and the ash-pit door H2, leading to the ash-pit K, arranged below the grate O.

ing convenient access to the chambers for cleaning the same whenever it is desired to do so. The top of the uppermost chamber F is provided with suitable plugs which when removed permit convenient access to the pipes -ortubes D', D2, and D for cleaning the same whenever necessary. Other suitable accessor1es usual on boilers are supplied at the proper places, such'as a water-gage,a steampressure gage, and the like.

The several chambers B, E, and F may be of .cast-iron, boiler-iron, steel, or other suitable material, and the several chambers may be connected with each other by suitable staybolts, and each of the chambers may have its sides'fastened together by stay-bolts, so as to prevent spreading'of the chambers. If the chambers are made of cast-iron, (see Figs. 5 and 6,) then suitably-spaced strengtheningribs X are employed, the ribs integrally con- The several chambers B E F are provided with suitable hand-holes to permit of obtainnecting the top and bottom of the chambers with each other.

Havingthus described my invention, I claim as new and desire to secure by Letters Patentl. A steam boiler comprising a bottom chamber having a cut-out portion for the firebox, a top chamber, an intermediate chamber extending from the front of the boiler to within a distance of the rear of the boiler, pipes connecting the bottom chamber with the intermediate chamber, pipes connecting the intermediate chamber with the top chamber, pipes connecting the top chamber with the bottom chamber in the rear of the said intermediate chamber, and a horizontal partition between the top and intermediate chambers and extending from the -rear forwardly to within a distance from the front of the boiler.

2. A steam boiler comprising a bottom chamber having a cut-out portion for the firebox,a top chamber, an intermediate chamber extending from the front of the boiler to within a distance of the rear of the boiler, pipes connecting the bottom chamber with the intermediate chamber, pipes connecting the intermediate chamber with the top chamber, pipes connecting the top chamber with the bottom chamberin the rear of thesaid intermediate chamber, and a horizontal partition between the top and intermediate chambers and extending from the rear forwardly to within a distance from the front of the boiler, an outlet for the smoke and gases from the liront of the boiler at a point between the said top chamber and the said intermediate chamber.

3. A steam boiler comprising a bottom chamber having a cut-out portion for the tirebox, a top chamber, an intermediate chamber extending from the front of the boiler to within a distance of the rear of the boiler, pipes connecting the bottom chamber with the intermediate chamber, pipes connecting the top chamber with the bottom chamber in the rear ofthe said intermediate chamber, a horizontal partition between the top and intermediate chambers and extending Vfrom the rear forwardly to within a distance from the front of the boiler, and a steam-dome located above and connected with the said top chamber.

4. A steam-boiler comprising` a bottom chamber, a top chamber, an intermediate chamber, a steam-dome carried by the top chamber, pipes connecting the bottom chamber with the intermediate chamber, pipes connecting the intermediate cham ber with the top chamber, pipes connecting the top chamber with the bottom chamber, and a horizontal partition between the top and intermediate chambers and extending from the rear forwardly and terminating short of the front of the boiler.

5. A steam boiler comprising a bottom chamber extending from the {ire-box to the rear of the boiler, a top chamber extending from the iront to the rear of the boiler, a steam-dome carried by the top chamber, an intermediate chamber extending rearward from the front of the boiler and spaced at its rear end from the rear of the boiler, pipes connecting the bottom chamber with the intermediate chamber, pipes connecting the intermediate chamber with the top chamber, pipes extending in the space at the rear of the intermediate clmmber and connecting the top chamber with the bottom chamber, a horizontal partition extending forward from the rear of the boiler, and located between the top and intermediate chambers, and an outlet for the smoke and gases leading from the front of the boiler immediately below the top chamber.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES ANDREW STURM.

Witnesses:

JOSEPH ONEILL, G. L. LEONARD. 

